\begin{tikzpicture}
    \tkzDefPoints{0/0/A, 1/0/B}
    \tkzDefPointOnCircle[R = center B angle 38  radius 1.5] \tkzGetPoint{C}
    \tkzDefLine[parallel=through C](A,B) \tkzGetPoint{D}
    \tkzDrawSegments[dashed](A,B  B,C  C,D)
    \tkzMarkAngles[size=0.3](C,B,A  B,C,D)
    \tkzLabelPoints[below](B)
    \tkzLabelPoints[above](C)

    \begin{scope}[yshift=0.5cm]
        \tkzDefPoints{0/0/A, 1/0/B}
        \tkzDefPointOnCircle[R = center B angle 38  radius 1.5] \tkzGetPoint{C}
        \tkzDefLine[parallel=through C](A,B) \tkzGetPoint{D}
        \tkzDrawSegments[thick](A,B  B,C  C,D)
    \end{scope}
    \begin{scope}[yshift=-0.5cm]
        \tkzDefPoints{0/0/A, 1/0/B}
        \tkzDefPointOnCircle[R = center B angle 38  radius 1.5] \tkzGetPoint{C}
        \tkzDefLine[parallel=through C](A,B) \tkzGetPoint{D}
        \tkzDrawSegments[thick](A,B  B,C  C,D)
    \end{scope}
\end{tikzpicture}

